Cistern.



J. W. GARD.

GISTERN,

APPLIOATIION FILED MAY 22, 1912.

1,039,92, Patented Oct. 1, 1912.

Inventor Attorneys ill JOHN W. GARDQOI KQKOMO, INDIANA.

I CISTERM To all when: it may concern: 1

Be it known that I, JOHN e'm'j'a citizen of the United .States, lres'fdlng at Kokomo, in the county of Howard and State of Indiana, have invented a new angl seful Cistern, of which the following is a, specification. r lflhis invent-ion relates to cisterns.

"The primary objectof the invention is to provide means forremoving the sediment from the cistern the sediment in its removal being conducte from the cistern without cont-acting with the clear water.

A further object pf the present: invention is to provide melifis for removing allof the water or a portion c tie same from the cistern through the clear water outlet pipe, to remove the; sediment in the cistern.

A still further object-of the invention is to provide a structure in which the incoming water, containing thesediment does not'mix with the clear waterin the upper portion of the cistern, the up er'wall of the cistern in this manner being ept clean, thedepositing of the sediment at thebase of thecistern facilitating its ready removal. I

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of description hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disil losed can be made within the scope of whdtu's claimed without departing from the spirit of the invention.

In the drawings-Figure 1 is a vertical section. Fig. 2 is a similar view, showing a slightly modified formpf cisternyin which a filter is interposed between the receivlng chamber of. the ciste n, and the chamber from which the water passes tothe clear Water outle'ifi r In the drawings, designates the cistern which is formed with the sloping bottom walls 11 which communicate with the sediment chamber 12. The water is introduced in the cistern through the pipe 14 which terminates immediately above the chamber 12.. The sediment is siphoned from the chamber 12 through the pipe 15 which passes upward through the cistern, the sediment being conducted off through the outlet pipe 16 which is connected in the pipe 15 Specification oi Letters Patent.

Application filed 121122. 1912. Serial Ijto. 699,047.

' Patented0ct.1,1912.

adjacent the goose-neck 19, thisvalve 18 being normally open when the sedimentis being removed from the cistern, the valve being closed when it is desired. to close the outlet 16. -The clear water is-Eldr wn from;

the cistern through the pipe 20, s ctionbe:

ing created by any suitable form of pump, I

the pipe 20 terminatin adjacent the upper end of the conical wafi 11. The sediment outlet pipe 16 and the clear water outlet 20 are connected by the byass 21, a valve 22 being positioned in said y-pass, a valve 24 being positioned in the pipe 20 immediately below the point where the by-pass 21 joins the pipe 20. It will be noted by this construction that when there is not suflicient cleanwater to carry the sediment out of the cistern, that a portion or all of the water may be pumped out of the cistern by closing the valves 24- and 18 and opening the valve 22 and the by-pass 21, the suction created in the pipe 20 drawing as much water out of the cistern as is necessary to clean the cistern. It will be noted by this construction that the sediment in the chamber 12 will be siphoned through the pipe 15, passing out through the outlet 16 which. is provided with the air vent 17,-and that when it is desired to completely drain the cistern, the normal outlet of the pipe 20 and theoutlet of the sediment pipe 15 may be closed and the water drawn through'the sediment pipe 15 and the water outlet 20, the valves 22 in the by-pass being open. The many .advantages of this construction will be clearly apparent, as it will be noted that the same forms an efficient sediment remover, to-

gether with means for drawing ofl all of the water from the cistern.

. In the form shown in Fig. 2, the cistern 10 is provided adjacent the sloping wall 11 with the annular shoulder 25 which forms a support for a filter 26, which maybe of any suitable construction, but which is preferably formed with a cement, top'Il and porous side walls 28, a non-return check valve 29 being disposed adjacent the base of' the filter, allowing' water to enter the space inclosed' by the filter but preventing its passage from said space except throughthe porous side walls of the same. In this form the inlet pipe 30 extends through thevfilter and the sediment pipe 31 which is 'of the same construction as that shown in -the preeration in the modified form is practically the same as that of the preferred form, except that the water previous to passing out through the clear water outlet is conducted through the filter 26. It will be noted that in both forms the apparatus is such as may be easily and economically manufactured and that the same may be readily positioned within the cistern, and being at all times accessible for the purpose of repair.

It will be noted that when heavy rains occur, the same will cause a rapid filling of the cistern and that as the water will not pass through the filter as rapidly as it enters the cistern, the same will rise, the surplus being forced through the siphon drain.

What is claimed is:-

1. In a cistern, provided with a conical base portion, a sediment chamber arranged below said conical base portion, a Water inlet and outlet, a sediment outlet pipe communicating with the sediment chamber, a connection between said-sediment pipe and the outlet pipe. and valves disposed in said connection and both of said pipes.

2. In a cistern. provided with a conical base, a shoulder formed adjacent said base, a filter resting on said shoulder, an 'inlet pipe extending through said filter and a clear Water outlet pipe extending within the cistern, a'non-return check valve arranged in the filter, a sediment outlet pipe, valves disposed in the clear Water outlet pipe and the sediment outlet pipe and a valved connection between said pipes.

In testimony that I claim the foregoing as my own, I have hereto affixed my signature in the presence of two witnesses.

JOHN W. GARD. 

